Connecting "shed" roof to a wall

[tbrooks26]

First off, this is not actually a shed roof, but the future roof of my garage. It will be tied in/on to the gable wall of the house. I've never had to connect a roof like this other that for a lean-to or shed, but I want to make sure this is done right. Of course I could ask an engineer, but their answers are expensive, and I think I have a worthy solution. Just thinking someone on here may have done this before.

Normally for something small, I would just nail a 2x plate to the wall, and attach rafters to it. Although I will have total access to the wall framing, I don't think this is adequate. Since I do have access to wall framing, I'm thinking I will run the rafters into the wall, beside the studs and nail to the studs. The rafters would sit (possibly notched, at least a birds mouth) on top of the top plate for the wall. I plan on running some extra 2x4 blocking/bridging along the trusses to the gable wall to help stabilize the wall. This seems to be the best solution I could redneck inguneer. Any other ideas? I can't seem to find much on google. Something like this:

 

[Tractor Seabee]

I would put a ledger (same dimensions as the rafters on the studs, then use the appropriate Simpson Ties to attach the rafters to the ledger. I would use minimum 2 X 6 rafters or wider depending on span. Bring the siding down to the new roof and flash properly with wall flashing and a counter flashing. Any good lumber yard can help you with the pieces and sizing needed; at no extra cost. They will avoid advice on code compliance due to liability.

Ron

 

[tbrooks26]

I think you mean the same by ledger, as I mean by 2x plate. Like this


Thats how I've done it on a few small projects, but this is for a 16x24 garage. I will be using 2x10 spanning 16' on 2' centers. I feel there is just not a secure enough attachment to the studs with this method. I also thought about notching the plate/ledger into the studs, this would help with any downward force, but still wouldn't help keep the roof from pulling away, if for some reason it wanted to. Of course if that happened I might have bigger problems than just the roof pulling away lol.

 

[tbrooks26]

Oh and I almost forgot, I may have to do the ledger, because this roof will actually extend 4' past where the house ends. It will definitely create a weird situation with the roofs meeting there, but I can figure that out better once I get it framed. Maybe create a small hip or awkward sidewall situation. It will have a wall under this extended area though. It will look something like this


Basically the housewall will be extended under the garage roof, this is so I can have a man door there